TY - JOUR T1 - Foot Eczema in a Skin Allergy Unit: Retrospective Study of 13 Years JO - Actas Dermo-Sifiliográficas T2 - AU - Sánchez-Sáez,J.M. AU - López del Amo,A. AU - Bañuls,J. AU - Silvestre,J.F. SN - 15782190 M3 - 10.1016/j.adengl.2019.04.016 DO - 10.1016/j.adengl.2019.04.016 UR - https://actasdermo.org/en-foot-eczema-in-skin-allergy-articulo-S1578219019302264 AB - IntroductionFoot eczema is a common complaint encountered by skin allergists. ObjectivesTo study a series of patients with foot eczema who underwent patch testing and describe their demographic profile, diagnoses, and the main allergens involved. Material and methodsCross-sectional observational study of all patients tested with the standard Spanish patch test series at a dermatology department over a period of 13 years (2004–2016). We studied patch test results and definitive diagnoses by comparing different subgroups of patients with foot eczema. ResultsOf the 3265 patients included in the study, 308 (9.4%) had foot eczema, 176 (57.9%) had foot eczema only and 132 (42.1%) had concomitant foot and hand eczema. Positive patch test results were more common in patients with foot eczema only (positivity rate of 61.5% vs 53.4% for foot and hand eczema). In the subgroup of patients with concomitant foot and hand involvement, patients aged under 18 years had a lower rate of positive results (51.3% vs 64.6% for patients >18 years). Potassium dichromate was the most common allergen with current relevance in all subgroups. The main diagnosis in patients with foot involvement only was allergic contact dermatitis (49.1%). In the subgroup of patients with concomitant hand and foot eczema, the main diagnoses were psoriasis in adults (33.6%) and atopic dermatitis in patients aged under 18 years (60.0%). ConclusionPatch tests are a very useful diagnostic tool for patients with foot eczema with or without concomitant hand involvement. ER -